A randomized 25 question test from a pool of 761 questions, good luck!
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the switch interacts with?
A typical DCS has at least four layers in it's architecture. Valves, switches and transmitters are all under the direct control of which of the layers below?
Which of the answers best represents the number OSI network layers that the Foundation fieldbus frame is enclosed in?
Modbus has standard command codes to allow the master to access information from it's slaves. Which of the commands below would be used to write the contents of two output holding registers # 40002 & 40003 to the slave device
Which of the answers below best represents the recommended standard that uses an end device circuit to provide the encoding of characters?
There are commonly two configurations a programmer would use for workstations. Which of the answers below would best be described as a workstation that has the majority of the data processing done by the server?
In the process conditions model, there are transition points between the stages of operating conditions. Which of the answers below is the transition point between the abnormal to shutdown conditions?
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that converts 8 or 16 inputs to a digital signal?
Communication technology is generally specific to a type of area network. Which of the area networks below would IDSN and DSL be used primarily?
The numerous tasks that are accomplished at the same time in a DCS, is a result of the configured software programs that it has . Which of the software programs below will governed by IEC-61131-3?
The limits of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the indication of a parameters value being set by an operator?
Ethernet has two common messaging types that are controller-to-controller defined in the application layer. Which of those messaging types can be described as only using peer-to-peer communication?
There are several data access methods used to transmit data. Which of the answers below can be described as a single controlling device commences communication with the responding devices attached to the same network?
Which of the answers below is not an advantage of digital communications to field devices?
There are many different software programs that are commonly used by a DCS. Which of the programs below would allow the control of an employees access level in the system?
Which of the components below best represents the letter "A"?
In IPv4, it is possible to divide the class of network into a smaller network. Which of the terms below best describes this process?
Each network layer for a DCS has it's own specialized equipment or software. Which of the layers below would make use of a Foundation Fieldbus protocol?
A DCS collects a lot of data during the course of operating. Which of the terms below would best describe the database that contains all the data required to create a trend in the process?
Over the lifetime of a HMI, there will be changes to it's software form the supplier. Which of the terms below would best describe the red number in the picture below?
Which answer below best describes the result of electromagnetic interference in a transmission medium?
The standard recommended by ISA-18.2 is for 3-4 priority level alarms to be used. Which of the alarm priority levels below can best be described as less than 3-5% of the total amount of alarm that are configured??
A defined area of geographical coverage is commonly called an area network. Which of the area networks below is used for schools, small localized businesses, and shopping malls?
SCADA control systems are similar to other control system, but the components for a SCADA system vary slightly. Which of the components below would be designed to reduce data time stamping in real-time?
HMI networks are needed to expand or contract as required over their lifetime of use. Which of the networking types below will solve multiple DA server scalability issues?